CELESTIAL TRAVELEKS. 
185 
half later it is setting. We have missed our luncheon 
and dinner as well. There are onlj tive hours of day 
and as long a night, for the planet whirls around on 
its axis in less than ten hours. This rapid motion 
has bulged the equator out so that the orb is greatly 
flattened at the poles, like a tomato. A day’s labor, 
therefore, could not exceed three hours, but the year 
would include 10,455 such days. 
There are other surprises in store for us on this 
strange globe. A boy who weighed a hundred pounds 
on the earth now weighs two hundred and fifty, and 
finds himself so heavy that he becomes very tired 
after only a short walk. Instead of growing six feet 
tall, as he would on the earth, he would probably not 
exceed four and a half feet on Jupiter, but his width 
would be proportionately greater. 
As we go star-gazing we behold not one moon 
only shedding her soft light from the heavens, but 
the sky seems full of them. We may count as many 
as five on a single night, the largest having a diame¬ 
ter nearly equal to half the earth, or five times larger 
than our moon. We see the moons in various parts 
of the heavens, moving at various rates of velocity. 
The nearest, the baby, one hundred miles in diame¬ 
ter, passes through all phases of our moon in eleven 
hours, while the most distant requires only sixteen 
and two-third days to complete its revolution. 
Again, eclipses are numerous. These satellites 
not only eclipse the sun, but each other frequently, 
and in various situations. 
The planet which offers the most striking spec- 
